package com.sky.service.impl;

import ch.qos.logback.core.joran.util.beans.BeanUtil;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.OrdersPageQueryDTO;
import com.sky.dto.OrdersPaymentDTO;
import com.sky.dto.OrdersSubmitDTO;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.OrderService;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import org.apache.ibatis.annotations.Param;
import org.aspectj.weaver.ast.Or;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Service
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetalsMapper orderDetalsMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WebSocketServer webSocketServer;

    @Override
    public OrderSubmitVO submit(OrdersSubmitDTO ordersSubmitDTO) {
        /**
         * 获取地址簿，处理地址为空的情况
         */
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if(addressBook==null){
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        System.out.println(addressBook);
        Long userId= BaseContext.getCurrentId();
        ShoppingCart shoppingCart=new ShoppingCart();
        shoppingCart.setUserId(userId);
        List<ShoppingCart>  list = shoppingCartMapper.list(shoppingCart);
        if(list==null||list.size()==0){
            throw new AddressBookBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }
        Orders order = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO,order);
        order.setOrderTime(LocalDateTime.now());
        order.setAddress(addressBook.getDetail());

        order.setPayStatus(Orders.UN_PAID);
        order.setStatus(Orders.PENDING_PAYMENT);
        order.setNumber(String.valueOf(System.currentTimeMillis()));
        order.setPhone(addressBook.getPhone());
        order.setConsignee((addressBook.getConsignee()));
        order.setUserId(userId);
        orderMapper.insert(order);
        List<OrderDetail> lo=new ArrayList<>();

        for (ShoppingCart cart :list ){
            OrderDetail orderDetail=new OrderDetail();
            BeanUtils.copyProperties(cart,orderDetail);
            orderDetail.setOrderId(order.getId());
            lo.add(orderDetail);
        }

        orderDetalsMapper.insert( lo);
        shoppingCartMapper.clean(userId);
        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(order.getId())
                .orderNumber(order.getNumber())
                .orderAmount(order.getAmount())
                .orderTime(order.getOrderTime())
                .build();
        return orderSubmitVO;
    }


    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

//        //调用微信支付接口，生成预支付交易单
//        JSONObject jsonObject = weChatPayUtil.pay(
//                ordersPaymentDTO.getOrderNumber(), //商户订单号
//                new BigDecimal(0.01), //支付金额，单位 元
//                "苍穹外卖订单", //商品描述
//                user.getOpenid() //微信用户的openid
//        );
//
//        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
//            throw new OrderBusinessException("该订单已支付");
//        }
//
//        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
//        vo.setPackageStr(jsonObject.getString("package"));



        JSONObject jsonObject = new JSONObject();
        jsonObject.put("code", "ORDERPAID");
        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));

        //为替代微信支付成功后的数据库订单状态更新，多定义一个方法进行修改
        Integer OrderPaidStatus = Orders.PAID; //支付状态，已支付
        Integer OrderStatus = Orders.TO_BE_CONFIRMED;  //订单状态，待接单
        //发现没有将支付时间 check_out属性赋值，所以在这里更新
        LocalDateTime check_out_time = LocalDateTime.now();
        //获取订单号码
        String orderNumber = ordersPaymentDTO.getOrderNumber();
        System.out.println("调用updateStatus，用于替换微信支付更新数据库状态的问题");
        orderMapper.updateStatus(OrderStatus, OrderPaidStatus, check_out_time, orderNumber);


        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);
        Map map=new HashMap<>();
        map.put("type",1);
        map.put("orderId",ordersDB.getId());
        map.put("content","订单号:"+outTradeNo);
        String json= JSON.toJSONString(map);


    }

    @Override
    public void reminder(Long id) {
        Orders ordersDB=orderMapper.getById(id);
        if(ordersDB==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        Map map = new HashMap();
        map.put("type",2);
        map.put("orderId",id);
        map.put("content","订单号:"+ordersDB.getNumber());
        String json=JSON.toJSONString(map);
        webSocketServer.sendToAllClient(json);

    }

    @Override
    public PageResult pageQueryUser(int page, int pageSize, Integer status) {
        PageHelper.startPage(page, pageSize);
        OrdersPageQueryDTO oq=new OrdersPageQueryDTO();
        oq.setStatus(status);
        oq.setUserId(BaseContext.getCurrentId());
        Page<Orders> pages=orderMapper.pageQuery(oq);

        List<OrderVO> listOrderVOlist=new ArrayList<>();

        if(pages!=null&&pages.getTotal()>0){
            for(Orders order:pages){
                OrderVO orderVO=new OrderVO();

                Long orderId=order.getId();
                List<OrderDetail> l2=orderDetalsMapper.selectByOrderId(orderId);
                BeanUtils.copyProperties(order,orderVO);
                orderVO.setOrderDetailList(l2);
                listOrderVOlist.add(orderVO);
            }

        }

        return new PageResult(pages.getTotal(),listOrderVOlist);
    }

    @Override
    public OrderVO getDetails(Long id) {
        OrderVO orderVO=new OrderVO();
        Orders orders=orderMapper.getById(id);
        BeanUtils.copyProperties(orders,orderVO);
        List<OrderDetail> list=orderDetalsMapper.selectByOrderId(id);
        orderVO.setOrderDetailList(list);
        return orderVO;
    }

    /**
     * 手动取消订单
     * @param id
     */
    @Override
    public void cancel(Long id) {
        orderMapper.cancelorder(id);
    }


    @Override
    public void repetition(Long id) {
//        Orders orders=orderMapper.getById(id);
        List<OrderDetail> OrderDetailsList=orderDetalsMapper.getByOrderId(id);
        List<ShoppingCart> shoppingCartList=OrderDetailsList.stream().map((item)->{
            ShoppingCart shoppingCart=new ShoppingCart();
            BeanUtils.copyProperties(item,shoppingCart,"id");
            shoppingCart.setUserId(BaseContext.getCurrentId());
            shoppingCart.setCreateTime(LocalDateTime.now());
            return shoppingCart;

        }).collect(Collectors.toList());
        shoppingCartMapper.insrtBatch(shoppingCartList);



    }

    @Override
    public OrderStatisticsVO statistics() {
        Integer TO_BE_CONFIRMED = orderMapper.getByStatus(Orders.TO_BE_CONFIRMED);
        Integer CONFIRMED = orderMapper.getByStatus(Orders.CONFIRMED);
        Integer DELIVERY_IN_PROGRESS = orderMapper.getByStatus(Orders.DELIVERY_IN_PROGRESS);

        OrderStatisticsVO orderStatisticsVO=OrderStatisticsVO.builder()
                .toBeConfirmed(TO_BE_CONFIRMED)
                .confirmed(CONFIRMED)


                .deliveryInProgress(DELIVERY_IN_PROGRESS)
                .build();
        return orderStatisticsVO;
    }

    @Override
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(),ordersPageQueryDTO.getPageSize());
        Page<Orders> page=orderMapper.pageQuery(ordersPageQueryDTO);
        List<OrderVO> listOrderVOlist=getOrderVOList(page);
        return new PageResult(page.getTotal(),listOrderVOlist);
    }

    @Override
    public void admincancelorder(String cancelReason, Long id) throws Exception {

        // 根据id查询订单
        Orders ordersDB = orderMapper.getById(id);
        //支付状态
        Integer payStatus = ordersDB.getPayStatus();
        if (payStatus == 1) {
            //用户已支付，需要退款
            String refund = weChatPayUtil.refund(
                    ordersDB.getNumber(),
                    ordersDB.getNumber(),
                    new BigDecimal(0.01),
                    new BigDecimal(0.01));
        }

        // 管理端取消订单需要退款，根据订单id更新订单状态、取消原因、取消时间
        Orders orders = new Orders();
        orders.setId(id);
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason(cancelReason);
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);

    }

    @Override
    public void rejection(String rejectionReason, Long id) throws Exception {


        // 根据id查询订单
        Orders ordersDB = orderMapper.getById(id);

        // 订单只有存在且状态为2（待接单）才可以拒单
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        //支付状态
        Integer payStatus = ordersDB.getPayStatus();
        if (payStatus == Orders.PAID) {
            //用户已支付，需要退款
            String refund = weChatPayUtil.refund(
                    ordersDB.getNumber(),
                    ordersDB.getNumber(),
                    new BigDecimal(0.01),
                    new BigDecimal(0.01));
        }

        // 拒单需要退款，根据订单id更新订单状态、拒单原因、取消时间
        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setRejectionReason(rejectionReason);
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);

    }

    @Override
    public void confirm(Long id) {
        Orders orders=orderMapper.getById(id);
        orders.setStatus(Orders.CONFIRMED);
        orderMapper.update(orders);
    }

    @Override
    public void complete(Long id) {
        // 根据id查询订单
        Orders ordersDB = orderMapper.getById(id);
        // 校验订单是否存在，并且状态为4
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.COMPLETED);
        orders.setDeliveryTime(LocalDateTime.now());

        orderMapper.update(orders);
    }

    @Override
    public void delivery(Long id) {

        // 根据id查询订单
        Orders ordersDB = orderMapper.getById(id);

        // 校验订单是否存在，并且状态为3
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        // 更新订单状态,状态转为派送中
        orders.setStatus(Orders.DELIVERY_IN_PROGRESS);

        orderMapper.update(orders);
    }


    private List<OrderVO> getOrderVOList(Page<Orders> page){
    List<OrderVO> listOrderVOList=new ArrayList<>();

    List<Orders> orderList=page.getResult();

    if(!CollectionUtils.isEmpty(orderList)){
        for(Orders order:orderList){
            OrderVO orderVO = new OrderVO();
            BeanUtils.copyProperties(order,orderVO);
            String orderDishes = getOrderDishesStr(order);
            // 将订单菜品信息封装到orderVO中，并添加到orderVOList
            orderVO.setOrderDishes(orderDishes);
            listOrderVOList.add(orderVO);
        }
    }

        return  listOrderVOList;

    }


    private String getOrderDishesStr(Orders order){
        List<OrderDetail> orderDetailList = orderDetalsMapper.getByOrderId(order.getId());

        List<String> orderDishList=orderDetailList.stream().map((item)->{
            String orderDish = item.getName() + "*" + item.getNumber() + ";";
            return  orderDish;
        }).collect(Collectors.toList());
        return String.join("",orderDishList);

    }
}
